Toyota Motors has formally announced that the new 2014 Sienna will eliminate the 2.7 L four-cylinder engine. The reason behind by not installing 2.7 L four-cylinder engine anymore lies in the fact that this engines is incapable to gain more power and a better fuel economy over the V6 engine.
So the 3.5 L V6 engine will be standard in all 2014 Sienna models.
